Book Image

Learn Ansible

By : Russ McKendrick
Book Image

Learn Ansible

By: Russ McKendrick

Overview of this book

Ansible has grown from a small, open source orchestration tool to a full-blown orchestration and configuration management tool owned by Red Hat. Its powerful core modules cover a wide range of infrastructures, including on-premises systems and public clouds, operating systems, devices, and services—meaning it can be used to manage pretty much your entire end-to-end environment. Trends and surveys say that Ansible is the first choice of tool among system administrators as it is so easy to use. This end-to-end, practical guide will take you on a learning curve from beginner to pro. You'll start by installing and configuring the Ansible to perform various automation tasks. Then, we'll dive deep into the various facets of infrastructure, such as cloud, compute and network infrastructure along with security. By the end of this book, you'll have an end-to-end understanding of Ansible and how you can apply it to your own environments.
Table of Contents (20 chapters)

Chapter 9, Building Out a Cloud Network

  1. Which two environment variables are used by AWS modules to read your access ID and secret?

They are AWS_ACCESS_KEY and AWS_SECRET_KEY

  1. True or false: Every time you run the playbook, you will get a new VPC.

False

  1. State and explain why we are not bothering to register the results of creating subnets.

So that we can group together a list of subnet IDs by the role we have assigned them later in the playbook run

  1. What is the difference between using cidr_ip and group_id when defining a rule in a security group?

cidr_ip creates a rule that locks the supplied port down to a certain IP address where as group_id locks the post down to all hosts that are in the group_id you supply

  1. True or false: The order in which security groups are added when using rules that have group_id defined doesn't matter.

False

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